This actually goes along with my real problem with the RLG guidelines, which is that they claim to be a checklist and aren't. There are lots of good scoreable checklists out there, but the RLG guidelines are so vague, so hand-waving, so dependent on your user community (assuming, as you say, that your user community is even pin-down-able at all) that it's much more valuable as a manual that might help you developing a checklist.